31474840

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{7219}}^1$

素因数の和:7339

約数の個数: 32

約数和(自身を含む): 71478000

約数和(自身を除く): 40003160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 7219, 14438, 28876, 36095, 57752, 72190, 144380, 288760, 786871, 1573742, 3147484, 3934355, 6294968, 7868710, 15737420, 31474840]

約数ペア:

[(1, 31474840), (2, 15737420), (4, 7868710), (5, 6294968), (8, 3934355), (10, 3147484), (20, 1573742), (40, 786871), (109, 288760), (218, 144380), (436, 72190), (545, 57752), (872, 36095), (1090, 28876), (2180, 14438), (4360, 7219)]